
modpack
OptimMinecraft modpack for 26.3
Optim is a Fabric modpack that aims to provide maximum performance with some common quality-of-life modifications to the game.
- Latest version
- v1.16.1
- Minecraft
- 1.20.2 to 26.3
- Java
- Java 25+
- Loader
- Fabric
- Licence
- Apache-2.0
- Downloads
- 2.9k
- Updated
- 7 d ago
- Available on
- Modrinth
Host Optim servers
One click and Optim is installed with the right loader, on hardware built for it.
- 26.3
- Fabric
- One click modpack install
- Dependencies handled
- Tuned startup flags
- NVMe SSD
Screenshots
Click a screenshot to open it. Screenshots are served from the author’s own host and belong to them.
Minecraft versions
Every version Optim declares support for, newest first, with the Java runtime that version needs.
| Minecraft | Through | Java | Evidence | Released |
|---|---|---|---|---|
| 26.3 | Fabric | 25+ | declared | 15 Sept 2026 |
| 26.2 | Fabric | 25+ | declared | 16 Jun 2026 |
| 26.1.2 | Fabric | 25+ | declared | 9 Apr 2026 |
| 1.21.11 | Fabric | 21+ | declared | 9 Dec 2025 |
| 1.21.8 | Fabric | 21+ | declared | 17 Jul 2025 |
| 1.21.5 | Fabric | 21+ | declared | 25 Mar 2025 |
| 1.21.4 | Fabric | 21+ | declared | 3 Dec 2024 |
| 1.21.3 | Fabric | 21+ | declared | 23 Oct 2024 |
| 1.21.1 | Fabric | 21+ | declared | 8 Aug 2024 |
| 1.21 | Fabric | 21+ | declared | 13 Jun 2024 |
| 1.20.4 | Fabric | 17+ | declared | 7 Dec 2023 |
| 1.20.2 | Fabric | 17+ | declared | 20 Sept 2023 |
Most recently published release
Optim-v1.16.1.mrpack · 30 KB · for 26.3 · Fabric
d4fd24de7404…Older versions24Hide older versions
- v1.16.025 Oct 202626.330 KB
a041023cf3a0…Get - v1.15.125 Oct 202626.230 KB
f3713747162d…Get - v1.15.013 Jul 202626.229 KB20 downloads
888a0720083b…Get - v1.14.312 Jul 202626.1.261 KB3 downloads
ccad9cbb6cc3…Get - v1.14.227 Jun 202626.1.261 KB10 downloads
7dfac22f29cc…Get - v1.14.16 Jun 202626.1.230 KB10 downloads
76a48af8d023…Get - v1.14.03 May 202626.1.230 KB29 downloads
e742fd36ab64…Get - v1.13.15 Apr 20261.21.1130 KB23 downloads
4b48fa44face…Get - v1.13.021 Feb 20261.21.1130 KB78 downloads
6390241ffe8e…Get - v1.12.24 Oct 20251.21.831 KB204 downloads
ffc2281ef2ad…Get - v1.12.128 Sept 20251.21.831 KB32 downloads
94493f8604b4…Get - v1.12.024 Sept 20251.21.829 KB24 downloads
bfcd60aeaa41…Get - v1.11.224 Sept 20251.21.529 KB27 downloads
2436f1e4af2c…Get - v1.11.120 Jul 20251.21.529 KB105 downloads
bbd03c7711f1…Get - v1.11.017 Jun 20251.21.541 KB61 downloads
7cc33e138de1…Get - v1.10.012 Mar 20251.21.459 KB170 downloads
b36323bc7fd2…Get - v1.9.910 Mar 20251.21.456 KB48 downloads
e5a93400b666…Get - v1.9.811 Feb 20251.21.456 KB83 downloads
703a69c270d2…Get - v1.9.712 Dec 20241.21.355 KB96 downloads
3669d0e64a9b…Get - v1.7.028 Sept 20241.21.12.0 MB145 downloads
80bfe33d1c4b…Get - v1.6.327 Sept 20241.21.12.0 MB53 downloads
6aae48aadb26…Get - v1.5.37 Sept 20241.21.12.0 MB71 downloads
3cf3b0c08f2b…Get - v1.5.220 Jul 20241.212.0 MB73 downloads
7b4ce8b390a0…Get - v1.5.120 Jul 20241.211.5 MB101 downloads
11298fb1bafe…Get
Frequently asked
Does Optim work on Minecraft 26.3?
Yes. 26.3 is the newest Minecraft version Optim declares support for, and the claim comes from the author's own release metadata rather than from a compatibility list somebody maintains by hand.
Which Minecraft versions does Optim support?
Everything the author has declared, from 1.20.2 up to 26.3. The full list is in the table above, with the Java runtime each version needs next to it.
Do I need to install Optim on the client or the server?
The client only. There is nothing to install on the server side. That is the author's declared design, not a guarantee for every server: one running anti-cheat or missing a counterpart mod can still object.
Which platform or loader does Optim support?
Fabric. A build for one platform or loader will not necessarily load on another, so this is the first thing to check before the Minecraft version.
Which Java version do I need for Optim?
Among the supported Minecraft releases above, the highest recorded requirement is Java 25 or newer. Use the requirement for the exact Minecraft version you run; previews and snapshots may differ.
What licence is Optim under?
Apache-2.0, as stated by the author on the platform we synced it from. Check the project's own page before redistributing or bundling it.
How do I install Optim?
Use a launcher that imports packs, such as Prism Launcher, the Modrinth App or the CurseForge app, and open the pack file with it. The launcher installs the right loader and mods for you; installing a pack's mods by hand is the error-prone way.
Where do I download Optim safely?
Start with the author's page on Modrinth, which is where the data here is synced from. MCReference does not host or repackage files. When available, recorded download links go to the source for that release; verify the publisher, filename and any available checksum before running it.
Works on the same versions
Ordered by how much of the recent Minecraft version coverage overlaps, not by popularity.
Is this information wrong or missing something? .

